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Solve for xx.\newline (x - 6)(x + 6) < 0 \newlineWrite a compound inequality like 1 < x < 3 or like x < 1 or x > 3.

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Q. Solve for xx.\newline(x6)(x+6)<0 (x - 6)(x + 6) < 0 \newlineWrite a compound inequality like 1<x<31 < x < 3 or like x<1x < 1 or x>3x > 3.
  1. Plot Zeros and Test Intervals: Plot the zeros on a number line and test the intervals. The intervals are (,6)(-\infty, -6), (6,6)(-6, 6), and (6,)(6, \infty).
  2. Test Interval (,6) (-\infty, -6) : Test the interval (,6) (-\infty, -6) by picking a number less than 6 -6 , say 7 -7 .(76)(7+6)=(13)(1)=13(-7 - 6)(-7 + 6) = (-13)(-1) = 13, which is positive.
  3. Test Interval (6,6) (-6, 6) : Test the interval (6,6) (-6, 6) by picking a number between 6 -6 and 6 6 , say 0 0 .(06)(0+6)=(6)(6)=36(0 - 6)(0 + 6) = (-6)(6) = -36, which is negative.
  4. Test Interval 6,):</b>Testtheinterval$6,)bypickinganumbergreaterthan$66, \infty):</b> Test the interval \$6, \infty) by picking a number greater than \$6, say 77.(76)(7+6)=(1)(13)=13(7 - 6)(7 + 6) = (1)(13) = 13, which is positive.
  5. Identify Negative Product Interval: Since we want (x - 6)(x + 6) < 0, the solution is the interval where the product is negative.\newlineThe product is negative in the interval (6,6)(-6, 6).
  6. Write Compound Inequality: Write the solution as a compound inequality. -6 < x < 6.

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